/Engine/Source/Runtime/StaticMeshDescription/Public/StaticMeshOperations.h
Convert this mesh description into the oldFRawMeshformat.
static void ConvertToRawMesh ( const [FMeshDescription](API\Runtime\MeshDescription\FMeshDescription) & SourceMeshDescription, [FRawMesh](API\Runtime\RawMesh\FRawMesh) & DestinationRawMesh, const [TMap](API\Runtime\Core\Containers\TMap)< [FName](API\Runtime\Core\UObject\FName), int32 > & MaterialMap )